Communicating junctions are protein channels that
A) allow ions to cross freely between cells.
B) actively transport ions from one cell to the next.
C) prevent free-movement of molecules in the space between adjacent cells.
D) provide pathways of high electrical resistance.
E) use integrins to span the plasma membrane and link to a similar unit in an adjacent cell.

Question

Quizplus · Accepted Answer

Communicating junctions, such as gap junctions in animal cells, consist of protein channels that allow ions and small molecules to pass directly from the cytoplasm of one cell to the cytoplasm of another, facilitating direct cell-to-cell communication.

Communicating Junctions Are Protein Channels That